If that was true, then I've gotten the really horrbile prize no one wants when I decided to reivew The Sad Beach. But that's not exactly the case with TDI 2. So the reason of reviewing varies from levle/level pack to level/pack. Sometimes you do it because you're bored, when you want to thank the author, when you want to point out all the good and bad things in a level, or when you just reviewed a really bad level and you want to review something thats pretty good (like TDI 2).
Yeah, thats just my 2 cents, more discussion doesn't have to come from this.